Milling process.



M. 0. PETERS.

MILLING PROCESS.

APPLICATION FILED MAR. 23. 1909.

Patented Oct. 26, 1909.

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MILTON C. PETERS, OF OMAHA, NEBRASKA.

MILLING PROCESS.

To all whom it may concern:

Be it known that I, MILTON G. PETERS, a citizen of the United States, residing at Omaha, in the county of Douglas and State of Nebraska, have invented certain new and useful Improvements in Milling Processes, of which the following is a specification.

My invention relates to a new and useful process of producing a stock food in the form of a ggund product of alfalfa hay, or other forage, by a reduction of the same and the se aration of wpgphless foreign matter, and t e su sequent se ar a ofg the fine fronrthe coarsemateria the coarse material of said separation being further re duced within a screening chamberand the resulting uniform product being delivered by a pneumatic or other conveyor to a receiver or place of final deposit to be used as a yyh'ole product or for admixture with anothenproduct for with the fine material of the before mentioned separation.

My invention consists of the steps and the combination or succession of steps constituting the process which I will hereinafter describe and claim.

In the accompanying drawing, the figure illustrates diagrammatically one type of apparatus by which the hereinafter described steps of my process may be carried out.

The apparatus A shown may represent any well known form of straw cutter or other machine or combination of machines or mechanical contrivances by which my process may be facilitated, therefore I wish it understood that I do not limit my invention to any special form or type of apparatus, or to any special means for effecting the grinding or reducing of the original product, the subsequent separations of worthless foreign matter and fine and coarse material, and the further grinding-or reduction of the separated coarse material in a screen chamber to insure a uniform final roduct.

As it is not unusual in the han ling of material of the character described for pieces of iron, horse-shoes, stones and other foreign substances to be gathered with the hay and as these substances must be separated from the hay, I prefer to construct the delivery chute of the cutting machine so that the aforesaid foreign substances and which have a greater specific gravity than the hay particles, will be separated by gravity and be collected at the point C, leaving the hay particles to be conveyed to the ac- Specification of Letters Patent.

Application filed March 23, 1909.

Patented Oct. 26, 1909.

Serial No. 485,168.

cumulator or dust collector substantially free of heavy incompressible foreign substances.

In the accumulator, or collector, B, the dust and more or less worthless fine particles which are present in the hay, are caused to separate from the more desirable parts of the material being treated, while the chopped material and which has been more or less cleaned by the foregoing operations, is delivered directly from the discharge chute of the accumulator into a closed casing, D, containing a screen. The screen may be of the rotary-bolt type with internal conveying means for agitating the material and advancing it to the delivery end of the casing.

The fine material passes through the meshes of the bolt or screen and which meshes may be of a size appropriate to the grade or use of the final product desired, and is delivered by a screw or other conveyer, E, into a spout or chute and may be cQllQCted for use as a special i li f fi 35:1 owl rstca T e firstmater-incomin from the rotary bolt or screen is directed into a spout or chute, F, which leads into the casing G, of a grinding mill or other appropriate disintegratlng machine where it is further reduced to a uniform condition. This grinding mill may take the type of the one shown in a companion application filed by me of even date herewith, but any other combined grinding and separating machine of suitable construction may be used without affecting the scope of my invention.

If a grinding mill of the type shown in my aforesaid other application is employed, the material will be caused to enter a screen chamber which incloses and is concentric with the axis of a rotary cutting or grinding member whose blades or cutters operate in conjunction with a stationary cutter-bar to further out and reduce the material. The inclosing screen S, will have its meshes of appropriate and desired size, and as the material is cut or reduced fine enough it passes through the screen and into a chamber from which it is drawn by a pneumatic or other means and thence conducted by a trunk or chute H, into any suitably placed receiver.

The product just described may be used by itself as a whole product or it may be used in combination with other material as a food for stock, fowls, etc. Spy etimes it is de si able to combine the separated nae prodduct designed, 0

uct of the rota ry bolt or screen S, with the si ibp d m l. e ii ifio ih a rin ingmill A, and this is done by connecting the discharge spout or chute of the casing of the rotary bolt, or other screen, with the trunk or delivery chute of the final conveyer before described.

As a result of the foregoing continuous treatment and succession of operations, the coarse materialis successively separated from material already of suflicient fineness to serve my purpose, thus relieving the grinding or cutting devices of excessive strains and greatly economizing in the horsepower required for the complete reduction of such material as alfalfa-hay. At the same time, I obtain a much cleaner and more wholesome final product and a chopped food of alfalfa leaves and stems whose particles are of nearly uniform size, and a superior stock food of so called alfalfa meal, or milled alfalfa.

Having thus described my invention what I claim as new and desire 'to' secure by Letters Patent is:

1. The process herein described of producing a stock food, said process consisting in redumg g alfalfa-hay into a chgp p ed product of disintegrated alfalfa leaves and st'ins then so eening out of the mass the fine material; then further disintegrating the reterial; then further disintegrating the re maining coarse material and substantially contemporaneously and progressively screening out the finer particles, while the material is undergoing reduction in-.the same chamber in which the screening of said material occurs, and then imparting a flight to the separated material of the final reduction and adding to said material during its flight the screened product of the former separation.

In testimony whereof I aflix my signature in presence of two witnesses,

MILTON C. PETERS. Witnesses:

T. W. FOWLER, C. W. FOWLER. 

